Already done that before, but I can also make this for check what commands are supported and what parameters
http://forum.mikrotik.com/t/new-command-in-routeros-7/169237/34
[rex@MATRIX] > :put [$cmdtreeVar export]
export
(a) compact
(a) file
(a) hide-sensitive
(a) show-sensitive
(a) terse
(a) verbose
(a) where
So, with /console/inspect on v7 you can check supported commands, put on one string the correct parameters and run it with :parse for still on same session.
On latest version of v7 both show-sensitive and hide-sensitive are supported, so if is run v6-like command, is accepted.